M 4.8 earthquake: Caribbean Sea (Liberia, Costa Rica) — August 6, 1983

M 4.8 earthquake: Caribbean Sea (Liberia, Costa Rica) — August 6, 1983. Epicenter 99 km W of Liberia, depth 33 km, 14:59 Local (1983-08-06 20:59 UTC). Shaking felt by ~447K people. Readings from every reporting agency, affected towns, aftershock sequence.

Caribbean Sea (99 km W of Liberia, Costa Rica) — 10.705, -86.332

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